[Kernel-packages] [Bug 1328595] Re: lvcreate -s hangs when overlayfs is in use
I did a little more testing. root@virt:~# uname -r 3.13.0-32-generic Actually the hanging seams to happen only when the overlayfs parts are on the logical volume being the snapshot source. Let's say /opt is a logical volume in the volume group virt. Case 1 (hanging): mkdir /opt/test/ cd /opt/test/ mkdir upper lower file_system touch lower/bla.dat mount -t overlayfs -o lowerdir=/opt/test/lower,upperdir=/opt/test/upper overlayfs /opt/test/file_system lvcreate -s -L 5G /dev/virt/opt -n vm_backup - Hang (see previous posts) Case 2 (not hanging): mkdir /opt/test/ lvcreate -n test -L10G virt mkfs.xfs /dev/virt/test mount /dev/virt/test /opt/test cd /opt/test/ mkdir upper lower file_system touch lower/bla.dat mount -t overlayfs -o lowerdir=/opt/test/lower,upperdir=/opt/test/upper overlayfs /opt/test/file_system lvcreate -s -L 5G /dev/virt/opt -n vm_backup Snapshot created even through the overlayfs is in use (but on a different volume). So the work around for the moment is to use two types of logical volumes : 1 one type for use with overlayfs where one has to make sure that no one ever takes a snapshot of (at least until this bug is fixed.) 2. one type where overlayfs never gets used but where snapshots can be taken from. May be this helps someone running into this issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1328595 Title: lvcreate -s hangs when overlayfs is in use Status in “linux” package in Ubuntu: Confirmed Bug description: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jun 10 18:02:13 2014 HibernationDevice: RESUME=UUID=6e68761a-6768-4e19-9c4e-f188538d6068 InstallationDate: Installed on 2014-02-18 (112 days ago) InstallationMedia: Xubuntu 13.10 Saucy Salamander - Release amd64 (20131016) Lsusb: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-29-generic N/A linux-backports-modules-3.13.0-29-generic N/A linux-firmware 1.127.2 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-22 (49 days ago) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1328595/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1328595] Re: lvcreate -s hangs when overlayfs is in use
Update: I tried to find a work around by using aufs. To make a long story short: There seams to be the same issue. mkdir /tmp/dir1 /tmp/aufs-root mount -t aufs -o br=/tmp/dir1:/home/test,xino=/dev/shm/aufs.xino none /tmp/aufs-root lvcreate -s -L 5G /dev/virt/opt -n vm_backup - Hang dmesg [1213440.776036] INFO: task ypbind:9957 blocked for more than 120 seconds. [1213440.776141] Not tainted 3.13.0-29-generic #53-Ubuntu [1213440.776233] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [1213440.776351] ypbind D 88042fc14440 0 9957 8265 0x2002 [1213440.776357] 880414fe9dd8 0002 880414c547d0 880414fe9fd8 [1213440.776362] 00014440 00014440 880414c547d0 880413016000 [1213440.776366] 0001 0001 8804130162b0 [1213440.776370] Call Trace: [1213440.776380] [8171e639] schedule+0x29/0x70 [1213440.776386] [811bee43] __sb_start_write+0x93/0xe0 [1213440.776393] [810aaea0] ? prepare_to_wait_event+0x100/0x100 [1213440.776397] [811bcb5e] compat_do_readv_writev+0x20e/0x260 [1213440.776452] [a03e2ec0] ? xfs_file_buffered_aio_write+0x1a0/0x1a0 [xfs] [1213440.776455] [811bc030] ? do_sync_read+0x90/0x90 [1213440.776461] [840c] ? acct_account_cputime+0x1c/0x20 [1213440.776465] [8109d77b] ? account_user_time+0x8b/0xa0 [1213440.776468] [8109dd94] ? vtime_account_user+0x54/0x60 [1213440.776472] [811bcc57] compat_writev+0x37/0x70 [1213440.776476] [811bdd69] compat_SyS_writev+0x49/0xa0 [1213440.776480] [8172c8ec] sysenter_dispatch+0x7/0x21 [1213440.776497] INFO: task lvcreate:28589 blocked for more than 120 seconds. [1213440.776603] Not tainted 3.13.0-29-generic #53-Ubuntu [1213440.776695] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [1213440.776811] lvcreateD 88042fcd4440 0 28589 24487 0x [1213440.776815] 8802ce4c1bc8 0002 8802ce7b 8802ce4c1fd8 [1213440.776819] 00014440 00014440 8802ce7b 880413016290 [1213440.776823] 8802ce4c1c00 8802ce7b 880413016218 0001 [1213440.776827] Call Trace: [1213440.776831] [8171e639] schedule+0x29/0x70 [1213440.776835] [811bef2d] sb_wait_write+0x9d/0xb0 [1213440.776839] [810aaea0] ? prepare_to_wait_event+0x100/0x100 [1213440.776842] [811bf128] freeze_super+0x68/0x130 [1213440.776847] [811f6645] freeze_bdev+0x75/0xd0 [1213440.776853] [815b6fca] dm_suspend+0x11a/0x1e0 [1213440.776857] [815bc384] dev_suspend+0x194/0x220 [1213440.776861] [815bc1f0] ? table_load+0x350/0x350 [1213440.776864] [815bcbb5] ctl_ioctl+0x255/0x500 [1213440.776868] [815bce73] dm_ctl_ioctl+0x13/0x20 [1213440.776873] [811cf9c0] do_vfs_ioctl+0x2e0/0x4c0 [1213440.776877] [8109dd94] ? vtime_account_user+0x54/0x60 [1213440.776880] [811cfc21] SyS_ioctl+0x81/0xa0 [1213440.776885] [8172adff] tracesys+0xe1/0xe6 I wonder how no one else can suffer from this problem. It should not be to uncommon to use LVM snapshots for backup purposes ... Greetings, Dirk -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1328595 Title: lvcreate -s hangs when overlayfs is in use Status in “linux” package in Ubuntu: Confirmed Bug description: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit
[Kernel-packages] [Bug 1328595] Re: lvcreate -s hangs when overlayfs is in use
When I do the steps: sudo apt-get update sudo apt-get dist-upgrade I do not get a new kernel. Anyway, the Kernel version on the system seams to be more current then the one mentioned in the post above: df@feretti-virt:~$ uname -r 3.13.0-29-generic So either I am missing something or the bug does still exist. ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1328595 Title: lvcreate -s hangs when overlayfs is in use Status in “linux” package in Ubuntu: Confirmed Bug description: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jun 10 18:02:13 2014 HibernationDevice: RESUME=UUID=6e68761a-6768-4e19-9c4e-f188538d6068 InstallationDate: Installed on 2014-02-18 (112 days ago) InstallationMedia: Xubuntu 13.10 Saucy Salamander - Release amd64 (20131016) Lsusb: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-29-generic N/A linux-backports-modules-3.13.0-29-generic N/A linux-firmware 1.127.2 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-22 (49 days ago) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1328595/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1328595] Re: lvcreate -s hangs when overlayfs is in use
As mentioned I already tested with a Kernel from 13.10 with the same result. To be sure I installed a minimal Ubuntu 13.10 in a virtual machine and did the steps to reproduce the issue. - The Problem existed in 13.10 as well. df@ubuntu-bug-check:~$ cat /etc/issue Ubuntu 13.10 \n \l sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/ubuntu-vg/root - Hang I will attach the dmesg output to this post. A test using a mainline kernel does not work, because overlayfs is not (yet) in mainline: df@feretti-virt:~$ uname -r 3.15.0-031500-generic df@feretti-virt:~$ sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test mount: unknown filesystem type 'overlayfs' So I will set the tag to 'kernel-unable-to-test-upstream'. Please change that in case there is a tag better fitting the situation. Thanks for looking into it. ** Attachment added: dmesg output on the 13.10 installation https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1328595/+attachment/4130901/+files/dmesg-1310.txt ** Tags added: kernel-unable-to-test-upstream ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1328595 Title: lvcreate -s hangs when overlayfs is in use Status in “linux” package in Ubuntu: Confirmed Bug description: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jun 10 18:02:13 2014 HibernationDevice: RESUME=UUID=6e68761a-6768-4e19-9c4e-f188538d6068 InstallationDate: Installed on 2014-02-18 (112 days ago) InstallationMedia: Xubuntu 13.10 Saucy Salamander - Release amd64 (20131016) Lsusb: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-29-generic N/A linux-backports-modules-3.13.0-29-generic N/A linux-firmware 1.127.2 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-22 (49 days ago) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1328595/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1328595] [NEW] lvcreate -s hangs when overlayfs is in use
Public bug reported: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jun 10 18:02:13 2014 HibernationDevice: RESUME=UUID=6e68761a-6768-4e19-9c4e-f188538d6068 InstallationDate: Installed on 2014-02-18 (112 days ago) InstallationMedia: Xubuntu 13.10 Saucy Salamander - Release amd64 (20131016) Lsusb: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-29-generic N/A linux-backports-modules-3.13.0-29-generic N/A linux-firmware 1.127.2 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-22 (49 days ago) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty ** Attachment added: dmesg.out https://bugs.launchpad.net/bugs/1328595/+attachment/4129014/+files/dmesg.out -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1328595 Title: lvcreate -s hangs when overlayfs is in use Status in “linux” package in Ubuntu: New Bug description: I am using xbuntu 14.04 LTS in combination with KVM, lxc, logical volumes and overlayfs. After I started using overlayfs i realized that my backup based on LVM snapshots made the system go mad. As described in the manual I tried the kernel from 13.10 (3.11.0-xx) with the same result. A test against main line does not help, since it does not include the overlayfs support. I tested the behaviour on a server as well as in a VirtualBox environment with the same result: lvcreate -s -n backup -L512M /dev/VG/NAME hangs and does not come back. This issue is easy reproducable: sudo mkdir /mnt/test /mnt/delta sudo mount -t overlayfs -o lowerdir=/usr,upperdir=/mnt/delta overlayfs /mnt/test sudo lvcreate -s -n backup -L512M /dev/xubuntu-vg/root - Hang df@feretti-virt:~$ uname -r 3.13.0-29-generic df@feretti-virt:~$ cat /proc/version_signature Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jun 10 18:02:13 2014 HibernationDevice: RESUME=UUID=6e68761a-6768-4e19-9c4e-f188538d6068 InstallationDate: Installed on 2014-02-18 (112 days ago) InstallationMedia:
